baber/WOPTO huggingface dataset:
Patent GB-465345-A (GB)
Title: Process for the refining of lead and lead alloys
IPC: C22B13/06
Filed: 1935-10-31
Abstract: Sodium is added to molten impure lead or lead alloys, containing copper, arsenic, tin and one or more of antimony, bismuth and noble metals, but no zinc, the copper, arsenic and tin being conjointly removed as a floating crust.  By using excess of sodium, part or all of the antimony may be removed.  Sodium may be added as such or as an alloy, other than a sodium-zinc alloy, and excess may be removed by treatment with steam or water. Practically pure lead-antimony alloy may be obtained.  British Specifications 171,490, [Class 82 (i)], and 465,346, and U.S.A. Specification 1,428,041 are referred to. Reference has been directed by the Comptroller to British Specification 171,490, and U.S.A. Specification 1,428,041.
Patent GB-192790-A (GB)
Title: Improvements in mechanical devices for use in artificial limbs and like surgical appliances
IPC: A61F2/78
Filed: 1921-11-11
Abstract: 192,790. Kenney, N. J. H. Nov. 11, 1921. Limbs, artificial. - Consists of a joint giving freedom of rotation in at least two directions whose axes are at right angles. The invention is described as applied to a hip-joint for an artificial leg. A 3at bar a attached to the bucket x of the leg carries a swivelling stud b, to which is attached, by means of a pin c, a bifurcated member d which is formed with an upward extension d' serving as a bearing socket for a rod e attached at its upper end. by means of a plate f, to a body belt g. In a modified form, the bifurcated member d has a downward extension acting as a stop to (limit the rotation about the stud c. It is stated that the invention may be applied to a dearticulated shoulder joint.
Patent GB-647456-A (GB)
Title: Improvements in or relating to electric discharge devices
Inventor: DELAMARE ALFRED CHARLES
IPC: H01J19/66
Filed: 1948-11-19
Abstract: 647,456. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. Nov. 19, 1948, No. 30142. [Class 39 (i)] A mounting arrangement for a discharge device having parallel terminal pins 3 comprises an apertured insulating disc 4 secured, e.g. by eyelets 5 spot-welded to at least one of the pins, in a position with all the pins projecting therethrough and shaped for insertion in a single position in a surrounding holder 8 and for engagement with said holder. The said position is defined by a lug 9 of the disc which enters a groove 10 in the holder. Terminals 11 are carried by the holder, the external wiring being permanently anchored to one end there of while flexible leads 12 welded to the pins 3 are soldered to their other ends. A metallic shield 17 is fixed to the disc 4 and may be formed with a portion to engage an extracting tool. A member 22 comprising resilient members 23 serves as a guide and protecting means for the envelope 24. It may also form a screen and may be provided with a black surface to assist in the dissipation of heat from the valve.
Patent GB-159618-A (GB)
Title: Improvements in plugs and sockets for electrical fittings
IPC: H01R13/71
Filed: 1919-12-03
Abstract: 159,618. Jones, E. Dec. 3, 1919. Switches, quick-action.-A coupling, acting also as a switch, comprises a detachable member 1 carrying notched contacts 5, which interlock with slots 4 in the cover of a base member 3, and carrying also a central spindle 12 having a square or other shaped section adapted to act as an earth terminal. The contacts 5 after insertion through a loosely pivoted square plate 21 and the slots 4 are turned to engage contacts 20 in the base. The spindle 12 engages a hole in a cammember 15, embraced by a spring 16 and adapted for connection to an earth lead. The cam operates upon the spindle to break the circuit between the contacts 5, 20 if the contacts shall not have been fully engaged.
Patent GB-740432-A (GB)
Title: Improvements in hackling machines for long vegetable fibres
Inventor: MACKIE JOHN PRINGLE
IPC: D01B5/00
Filed: 1953-11-02
Abstract: 740,432. Textile gill-boxes. MACKIE & SONS, Ltd., J. Oct. 18, 1954 [Nov. 2, 1953], No. 30254/53. Class 120 (1). In a hackling machine of the type exemplified in Specification 669,323, fast-running hackle bars 1 are separated by spacers 3, controlled by cam followers 5 and 7 carried on dogs 4 mounted at alternate ends of successive bars 1 and co-operating with guide tracks 6 and 8, and are pushed around guide tracks 9 by driving sprockets 10; the upper reach A-B is inclined upwardly at such an angle that when the bars 1 pass round the corner at the end B (as shown, over a sprocket 15) there is a sufficient number of bars lying above the point of engagement with the sprockets 10 to ensure a positive pressure exerted on the bars 1 reaching these sprockets.
Patent GB-142055-A (GB)
Title: Improved device for locking wheels of bicycles or the like
IPC: B62H5/14
Filed: 1919-12-03
Abstract: 142,055. Eras, V. J. M. Dec. 3, 1919. Guarding against unauthorized use.-Relates to a locking-device for the wheels of bicycles or the like of the type in which a horse-shoe-shaped strap 1 secured to the frame of the machine carries at one end a pivoted arm 3 adapted to be moved between the spokes of the wheel and into locking engagement with the other end of the strap, the arm, when released, being turned back clear of the spokes by a spring 10 and held in open position by a pawl 5 engaging a notch 11 in the arm. According to the invention, this notch is so located that it is engaged by the pawl before the arm 3 reaches the limit of its opening movement, so that, if when cycling the vibration of the machine jolts the pawl out of engagement with the notch, the spring 10, which controls both the arm and pawl, will move the arm still further outwards.
Patent GB-1328591-A (GB)
Title: Paracetamol-containing medicines
IPC: A61K9/20
Filed: 1971-06-28
Abstract: 1328591 Effervescent paracetamol preparations J BRU 28 June 1971 [29 June 1970] 30279/71 Heading A5B Pharmaceutical compositions comprise paracetamol (p-hydroxyacetanilide) or a sparingly soluble derivative thereof such as the benzoate or acetanilide, an effervescent couple e.g. NaHCO 3  and/or KHCO 3  and citric acid and/or monosodium citrate, and vitamin C. A method of preparing such preparations (which may be tableted) is described.
Patent GB-767509-A (GB)
Title: Improvements in and relating to the preservation of meat
IPC: A23B4/033
Filed: 1953-11-02
Abstract: Meat is treated before dehydration to prevent deterioration in flavour and development of undesirable brown colouration in the dehydrated product by cooking the meat in water to extract at least a substantial portion of the water-soluble portion, separating fat from the liquor so produced, treating the fat-free liquor with an enzyme to remove the fermentable sugar therefrom, removing suspended solids from the liquor, and the treated liquor is returned to the extracted meat for dehydration.  According to an example, one inch cubes of lean pork are cooked in boiling water, in two or three operations, 80 per cent of the soluble substances being so extracted, the combined cooking liquors are freed from fat, yeast or a notation and catalase preparation is added to the liquor and is allowed to act for 3-5 hrs. at 37 DEG C., the liquor is freed from suspended solids by filtering or centrifuging and is added, after being concentrated in vacuo if desired, to the extracted meat, and the meat so treated is minced, freeze-dried, and stored in nitrogen.
Patent GB-740296-A (GB)
Title: Improvements in fishing winches
IPC: B66D1/02
Filed: 1953-11-03
Abstract: 740,296. Fishing reels. MAUBORGNE, P. Nov. 3, 1953 [Nov. 3, 1952], No. 30320/53. Class 48. [Also in Group, XXIV] A fishing reel has an epicyclic gear train connecting a crank 10 to a rotating member, for instance the flyer drum 20 of the non-rotatable spool type of reel shown in Fig. 1 or the spool of the rotatable spool type of reel (Fig. 2, not shown), and means for variably braking one of the elements of the epicyclic gear train. The gear train comprises a crown wheel 12, a planet carrier 17 and a sun wheel 16 all rotatably mounted on a sleeve 6 secured to the reel casing 1. The crown wheel is secured to a pinion 11 which meshes with a wheel 9 driven by the crank 10. The sun wheel is secured to the flyer drum 20. A ring 23 is secured to the planet carrier 17 and passes between a friction jaw 24 fixed to the reel casing 1 and a movable friction jaw 25 carried by a pivoted lever 26. The movable friction jaw is pressed against the ring 23 by finger action on the pivoted lever, and by a spring 28 acting on the pivoted lever 26 and adjustable by a screw 29. The flyer drum has a line pick-up 21 including an idling roller 22. The spool 3 is screwed on to a shaft 5 accommodated in the sleeve 6 and reciprocated by a link 7 pivoted to a pin 8 fixed to the wheel 9.
Patent GB-756573-A (GB)
Title: Concentration of natural rubber latex by electrodecantation
Inventor: PATON FREDERICK JAMES
IPC: C08C1/075
Filed: 1953-11-04
Abstract: 756,573. Concentrating rubber latex by electrodecantation. DUNLOP RUBBER CO., Ltd. Oct. 25, 1954 [Nov. 4, 1953], No. 30415/53. Class 41. [Also in Group V] Natural rubber latex to be concentrated by electrodecantation in an apparatus having a plurality of substantially vertical semi-permeable membranes, is continuously supplied to the apparatus at a point above the membranes but below the level of the latex therein, whereby deposition of rubber on the membranes is reduced. The apparatus illustrated comprises a container 1 in which spaced vertical semipermeable membranes 2 are disposed parallel to and between electrodes 3 and 4 (not shown) each enclosed in a box provided with vents 5, 6 for conducting away gases formed by electrolysis. Latex is supplied through two tubes 7, 8 which extend downwardly through the top of the apparatus to a level just above the membranes 2. The latex serum is withdrawn through an outlet 10 (not shown) at the bottom of the container 1, whilst the rubber enriched latex is withdrawn through a horizontal tube 11 and a tube 12 having vertical and horizontal portions. The horizontal part of the tube 12 is rotatable to vary the height of the tube 11, a pointer 13 being provided to indicate said height. The tube 11 is preferably positioned at a distance above the membranes 2 which is approximately two thirds of their height. The deposition of rubber on the membranes 2 is further reduced by reversing periodically the electric potential difference applied to the latex.
Patent GB-435230-A (GB)
Title: Improvements in or relating to the fractionation of gasoline
IPC: C10G7/00
Filed: 1934-10-23
Abstract: A gasoline of high antiknock value is obtained from gasolines the Highest-Useful-Compression-volatility curve of which shows a break, by fractionating the gasoline sharply at the temperature corresponding to the break so that the boiling range of the distillate thus obtained, determined according to the A.S.T.M. method, does not overlap the next higher boiling fraction.
Patent GB-886798-A (GB)
Title: Electro-plating jigs
Inventor: ESSEX FREDERICK JAMES
IPC: C25D17/08
Filed: 1959-09-07
Abstract: 886,798. Work-holders for plating baths. CANNING & CO. Ltd., W. Aug. 18, 1960 [Sept. 7, 1959], No. 30428/59. Class 41. A work-holder for use in plating, anodizing and similar baths, comprises a supporting-bar 4, Fig. 2, from which pairs of wires 5 extend on each side, the whole assembly being coated with a plastic insulating material 6 except the ends of the wires which engage by push-fit sockets 10 in a work-holder 7. Each work-holder consists of a body part 8 coated with insulating material from which extends one or a pair of limbs 11 also insulated except the remote ends which are adapted to hold the workpiece. The limb parts may be of varied shape and are readily replaced on the pairs of wires. A plurality of pairs of wires may be provided, and the top of the bar 4 may have a hook to attach it to a cathode bus-bar.
Patent GB-791707-A (GB)
Title: Friction disc clutch
IPC: F16D13/71
Filed: 1955-10-25
Abstract: 791,707. Friction clutches. FICHTEL & SACHS AKT.-GES. Oct. 25, 1955 [Nov. 5, 1954], No. 30456/55. Class 80 (2). A friction clutch for motor vehicles comprises a driving flywheel 14 and casing 11, and a driven disc 19 engaged with the flywheel by an axially movable pressure plate 17, each of a number of projections 27 on the pressure plate having a radial slot to receive the flattened end 32 of a swinging bolt 30 formed with a hole 33 for a resilient pin means 34 passing through a corresponding transverse bore in the projection 27. The radial slot in the projection 27 is of sufficient size to allow the bolt 30 slight rotational freedom about the pin 34. The usual radial clutch throwout levers 37 are fulcrumed at 39 on the casing 11, and are formed with holes for the outer ends of the bolts 30, nuts 36 at the ends of the bolt retaining the levers in position. Springs 42 bias the inner ends of the lever 37 away from the casing 11. A ring 16 of friction material is secured to the flywheel 14, and a similar ring 18 of friction material is secured to the pressure plate 17.
Patent GB-1312084-A (GB)
Title: Taximeter having a stamping mechanism
IPC: G07B13/00
Filed: 1970-06-23
Abstract: 1312084 Taximeters ABU AB 23 June 1970 [24 June 1969] 30489/70 Heading G4T A taximeter has several register mechanisms and is arranged to print the information given on a sheet-like record carrier inserted through an opening in the casing of the taximeter when manual operating means including a snaprelease spring drive are actuated to effect stamping of the record carrier against printing means carried by the register mechanisms, the carrier being released for withdrawal after printing. In the embodiment described all the register mechanisms are advanced step-wise. The total distance and paid distance registers, 8 and (7), are advanced stepwise by an annular cam 31 which acts on pivoted angled rod 27 (see also Fig. 1, not reproduced). The paid distance register (7) is disconnected when the taximeter is set "for hire" by pivoting a resilient hook 21 into the path of advancing pin 23 and engaging it therein (see also Fig. 4, not reproduced). The drive to cam 31 is disconnected when the vehicle is reversed. Printing mechanism.-Associated with each register mechanism is a stamp arm freely mounted on a common shaft 53, Fig. 3, and carrying a pressure pad 95 and counterweight 63 at the end adjacent the register mechanism. The record carrier 91 consists of two sheets of paper separated by carbon paper and is inserted though a slot 93. An operating arm 75, Fig. 2, is pivoted on the casing 17 and carries a pivotally mounted arcuate arm 81, which extends through a slot 83 and abuts a spring arm 67, fixed to the square end 65 of shaft 53. A similar spring arm (66) is mounted on the opposite end of shaft 53, and the two spring arms are connected by a shaft 67 (see also Fig. 1, not reproduced). Arm 81 is urged anti-clockwise by a spring 85 bearing against arm 75 and a projection 87. When arm 75 is swung in the direction indicated, arm 81 rotates swing arm 67 clockwise, which moves shaft 69 to the left, as shown in Fig. 3, and tensions spring 71. The stamp arms 57 are also moved clockwise by springs 95 attached to shaft 69 and a narrow shaft 97 positioned in holes 99 of the stamp arms. As the arm 75 is swung the arcuate arm 81 is acted on by the end of slot 83 and disengages from spring arm 67 allowing the spring arms to be returned by the springs 71 until they rest against rubber pads 89, Fig. 2. The stamp arms 57 accompany this movement and after the spring arms have been stopped strike the printing wheels of the registers by virtue of the kinetic energy of the counterweights 63.
Patent GB-685538-A (GB)
Title: Improvements in or relating to bis-phenylol silanes
IPC: C07F7/18
Filed: 1949-11-29
Abstract: Dimethyl-bis-(phenylol silanes are prepared by reacting a dimethyl-bis-halophenoxysilane of the general formula <FORM:0685538/IV (b)/1> wherein R is an alkyl radical, X is a halogen atom and "n" is 0 or 1, with trimethylchlorosilane by contacting the two with an alkali metal to give a compound of the probable general formula <FORM:0685538/IV (b)/2> wherein R and n have the above significance, which is then hydrolysed.  The group R may be a methyl radical and X may be chlorine or bromine.  In the examples dimethyl-bis-(p-phenylol) silane and dimethyl-bis-(2-methylphenylol-4) silane are prepared. Specification 685,539 is referred to.
Patent GB-1175022-A (GB)
Title: Low Pressure Reforming Process
IPC: C10G35/09
Filed: 1968-06-27
Abstract: 1,175,022. Reforming. CHEVRON RESEARCH CO. 27 June, 1968 [30 June, 1967], No. 30749/68. Heading C5E. A process for catalytically reforming a naphtha to obtain a reformate having an F-1 clear octane number of at least 98 comprises contacting said naphtha and hydrogen with a catalyst comprising a porous inorganic oxide carrier in association with from 0.01 to 1 weight per cent of platinum promoted with from 0.01 to 2 weight per cent of rhenium at reforming conditions including a pressure of less than 250 p.s.i.g., a liquid hourly space velocity of at least 2À0, and a hydrogen to hydrocarbon mole ratio less than the value determined from the equation where x is the temperature at which 95 volume per cent of said naphtha had been distilled during an ASTM D-86 distillation, and where k depends on the F-1 clear octane number of the reformate being produced according to the equation k= - 0.038 (O.N.) +5.10, the process being effected for an on-stream period of at least 2000 hours with a C 5 + liquid yield decline of no greater than 2 volume per cent over 2000 hours. The catalyst support may be silica-alumina, silica zirconia, silica - alumina - zirconia, silica magnesia, silica - alumina - magnesia or a zeolite. The catalyst may be sulphided prior to use. It may be further promoted by fluorides or chlorides. The feed stock may be a naphtha, for example, a hydro-cracked naphtha, and, if necessary may be desulphurized before the reforming process.
Patent GB-206366-A (GB)
Title: Improvements in or relating to lightning arresters
IPC: H01C7/12
Filed: 1922-11-10
Abstract: 206,366. Metropolitan-Vickers Electrical Co., Ltd., (Westinghouse Electric & Manufacturing Co.). Nov. 10, 1922. Lightning - arresters. - A lightning- arrester comprises a number of discs the material of which has a high specific resistance and their points of contact have higher specific resistances than the main body of the discs. The arrester provides a high resistance to currents of normal voltage but upon the occurrence of a h i g h potential a " glow " discharge occurs between the gaps on the surfaces of the discs. A porcelain cylinder 5, Fig. 1, having an inwardly projecting flange 6 supports a metal plate 7 and a number of discs 10 the material of which has a high specific resistance. A metal plate 11 connected to one electrode of a spark-gap 3 is pressed upon the discs 10 by means of a spring 14. The discs 10, although ground, have minute elevations and depressions which form points of contact 16, Fig. 2, and gaps 17 which vary from about one-third of a mil. to 8 mils. in order that a " glow " discharge shall not develop into an " are " discharge. The resistance of the points of contact of the dies 10 is increased by oxidising the material of the points of contact. A plurality of discs 10, Fig. 7, of high-resistance material preferably containing graphite, carborundum and kaolin are placed between electrodes 25 and 26 and clamped together. A direct-current potential of about 300 volts is applied for short intervals causing the contacting surfaces 29 to become hot, oxidizing the material at these surfaces and thereby increasing the resistance of the contact points. In a modification the discs are separated by mica spacers. Discs having surfaces of high specific resistance are formed by heating a rod containing graphite or similar carbonaceous material, carborundum and kaolin to a high temperature and exposing it to the air. The superficial oxidation increases the hardness and the resistance of the surface. The rod is then cut into discs which are treated in the manner shown in Fig. 7. The resistance of the contacting surfaces of the discs may be increased by placing the discs in an oxidizing agent such as chromic acid in water, potassium chlorate or permanganic acid. The oxidizing agent should become active at a relatively low temperature but sufficiently above the normal temperature of the discs in order that there may be no slow oxidisation. In the modification shown in Fig. 18 discs 38 consisting of graphite, carborundum and kaolin are provided with a rib 39. A plate or ring heated to cherry red is placed in contact with the rib 39 to oxidize its carbon and thereby increase its resistance. To prevent high electrostatic fields between the discs causing particles of the discs to separate out a thin layer of inorganic matter such as waterglass, barium sulphate or plaster of Paris is applied to the discs.
Patent GB-396684-A (GB)
Title: Improvements in and relating to systems of television
IPC: H04N5/16
Filed: 1931-11-06
Abstract: 396,684. Television. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Stocker, A. C. ; 1, Park Place, Audubon, New Jersey, U.S.A.) Nov. 6, 1931, No. 30826. Convention date, Nov. 6, 1930. Void [Published under Sect. 91 of the Acts]. [Classes 40 (iii) and 40 (v).] Special means are provided for transmitting frequencies corresponding to the average intensity of illumination, that is up to 100 cycles. The amplified photo-electric currents are passed to a filter 3, from which frequencies of 1200 to 50000 cycles pass to an amplifier 4, and frequencies up to 100 cycles to a modulator 5, which is connected to an oscillator 6 having a frequency in the 100 to 1200 cycle band, for example 700 cycles. The resulting signals of 600 to 800 cycles are amplified and combined with the currents from the amplifier 4.